Electrostatic condenser



Feb. 9 i526. 1,572,504

H.PERLESZ ELECTROSTATIC CONDENSER Filed Oct. 22, 192 2 Sheets-Sheet 1 H.PERLESZ ELECTROSTATIC CONDENSER Feb. 9 1926. 1,572,504

Filed Oct. 22, 1924 2 Sheets-Sheet 2 g6 figa few/66y Patented 9, 1926.

UNITED STATES PATENT OFFICE.

HUGO PERLESZ, QHIGAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO EENITH RADIO COBIORATION, A CORPORATION OF ILLINOIS.

ELECTROSTATIC CONDENSER.

Application filed October 22, 1924. Serial No. 745,157.

To all who-m it may concern:

Be it known that I, HUGO PnnLEsz, a citizen o the United States, residing at tl-l'iicago, in the county of Cook and the State of illineis, have invented a certain new and useful Improvement in Electrostatic Condensers. of which the following is a full, clear, concise, and exact description.

My invention relates to electrostatic condensers and has a number of objects and advantages in view. The invention is of particular service in connection with condensers whose capacity is adjustable although there are features of the invention that are not to be thus limited. An adjustable electrostatic condenser constructed in accordance with my invention employs a frame which carries bearings upon its opposite sides for the adjustable side or rotor of the condenser, these bearings being positioned to enable the rotor to turn in the space surrounded by the frame.

uitably assembled with the frame in register with the space surrounded by the frame. In the preferred embodiment of the invention, the frame is formed of cast metal and is supported upon a pedestal that is integrally cast therewith The stator is carried by this pedestal, there being a mounting of insulation for the stator which is carried by the pedestal. .The condenser plates are desirably held in moulded metallic supports that are cast about edge portions thereof.

The invention will be more fully explained in connection with the accompanying drawings in which Fig. 1 is a side view of the condenser as it is preferably constructed; Fig. 2 is a plan View; Fig. 3 is a detailed view of aportion of the condenser on the opposite side from that illustrated in Fig. 1; Fig. 4 is a sectional view on line 1-1 of. Fig. 1; Fig. 5 is an end view with parts shown in section and parts broken away; Fig. 6 is a sectional view on line 6-6 of Fig. 2; and Fig. 7 is a sectional View on line 7-7 of Fig. 2.

The stator of the condenser illustrated is inclusive of a number of parallel metallic plates 1 which are assembled in spaced apart relation by means of twoop ositely arranged metallic mounting bloc s 2 which are cast about adjacent edge portions of saidplates. The rotor of the condenser comfixed distance.

The stator of such a condenser is spring prises a plurality of metallic plates 3 assembled oy means of a rotatively supported metallic mounting 4 which is cast about adjacent portions of these plates. This rotatively supported mounting 4 is preferably in the nature of a sleeve that is rigidly assemble-d with a metallic shaft 5 whose outer ends ,6 and 7 are respectively journaled in bearings 8 and 9 that are threaded into sleeves 10 and 11 which are spaced apart a The inner ends of the bores of the bearings are desirably outwardly conically tapered to engage the conically tapered portions 12, 13 of the mounting 4: whereby the bearings 8 and 9 serve not only to rotatively'support the rotor of the condenser but also hold the rotor in the plane of movement determined for it by the adjustment of the bearings 8 and 9 in their containing sleeves 10 and 11, the mechanism permitting the plates of the-rotor to be disposed midway in the spaces between the plates of the stator. After the proper adjustment of the rotor has been determined, it is fixed by means of the lock nuts 14 and 15 screwed upon the sleeves 8 and 9 respectively and against the outer end faces of'the sleeves 10 and 11 respectively. The stator is connected in circuit by means of wiring connected with either or both of the metallic clips mechanically assembled with the mounting blocks 2 by means of the screw bolts 17 The rotor is connected in circuit by means of a flexible conductor 18 assembled at one end with the metallic mounting d for the rotor, as by means of solder. The other end of this flexible conductor is connected with a terminal clip 19 with which a circuit wire may be connected. The terminal clip 19 is mechanically and electrically connected with a spring 20 which terminates in a ring 21 that surrounds the reduced portion 13 of mounting 4 and is pressed against the adjacent larger portion of the mounting 4 by means of a te'nsioning screw 22 which has thrusting engagment with a side of the 20 to regulate the pressure of the ring 21 against the mounting. The screw is threaded in a cast metal frame 23 which carries the bearings for the rotor and so positions these hearings that the rotor may turn in the space surrounded by the frame. The screw 22 has a reduced end 24 passing 16 which are electrically and through the spring 20 toprevent this spring ment which permits the insertion of the shaft 5 in the bearing 11. A metallic pedestal 26 is desirably integrally cast with the frame and is preferably inclusive of two side portions connected with the frame sides which carry the bearings, cross connecting members 27 joining these side )ortions and mounting lugs 28 with whic l mounting strips of insulation 29 are assembled by means "of screws 30. The screw bolts 17 which assemble the clips 16 with the mount ing blocks 2 also assemble these mounting blocks with said insulating mounting strips. The frame is preferably rectangular in contour, although the invention is not to be thus limited.

The sleeve element 10 desirably has a stop-lug 31 integrally cast therewith and the mounting 4 has an arcuate lug 32 cast integrally therewith, the lug 31 projecting into the plane of the lug 32 to have its top and bottom sides respectively engaged by the ends of the lug 32 which is of an extent to limit the rotor to one-half of a revolution.

The stator plates are formed with arcuate recesses 33 which are coaxial with the shaft 5, I these recesses receiving the metallic mounting 4. This mounting is shaped to be furthest away from the recessed plates when the condenser is adjusted to mimmum or zero capacity then to eliminate capacity relation between the rotor mounting 4 and the stator side of the condenser.

Changes may be made without departing from my invention.

Having thus described my invention, I claim i g 1. An electrostatic condenser having one side in the form of a stator and its complemental side in the form of a rotor, in con bination with a cast metal frame having a sleeve element cast integrally with one side of the frame; a sleeve element assembled with the opposite side of the frame; bear ings assem ed with 'thesaid sleeve elements, the rotor being mounted in said bearings that are ositioned to enable the rotor to turn in t e ,space surrounded by the frame; and a mounting of insulation assembled with the frame and carrying the stator in register with said space.

2. An electrostatic condenser having one side in the form of a stator and its complemental side in the form of a rotor, in combination with a frame carrying bearings upon opposite sides of the frame and in which bearings the rotor is mounted, the bearings being positioned to enable the rotor to turn in the space surrounded by the frame, the stator bein assembled with the frame in register wit said space; and a pedestal formed integrally with said frame.

3. An electrostatic condenser having one side in the form of a stator and its complemental side in the form of a rotor, in combination with a cast metal frame having a sleeve element cast integrally with one side of the frame; a sleeve element assembled with the opposite side of the frame; bearings assembled with the said sleeve elements, the rotor being mounted in said bearings that are positioned to enable the rotor to turn in the space surrounded by the frame; a pedestal cast integrally with said frame; and a mounting of insulation assembled with the frame and carrying the stator in register with said space.

4. An electrostaticcondenser having one side in the form of a stator and its complemental side in the form of a rotor, in combination with a metallic frame carrying bearings upon opposite sides of the frame and in which bearings the rotor is mounted, the bearings being positioned to enable the rotor to turn in the space surrounded by the frame; a pedestal integrally formed with said frame; and a mounting of insulation assembled with the pedestal and carrying the stator in register with said space.

I 5. An electrostatic condenser having one side in the form of a stator and its complemental side in the form of a rotor, in combination with a cast metal frame havin a sleeve element cast integrally with one side of the frame; a sleeve element assembled with the opposite side of the frame; bearings assembled with the said sleeve elements, the rotor being mountedin said bearings that are positioned to enable the rotor to turn in the space surrounded by the frame; a edestal cast integrally with said frame; and a mounting of insulation assembled with the pedestal and carrying the stator in register with said s ace.

6. An electrostatic con enser having one side in the form of a stator and its complemental side in the formof a rotor, in com bination with a metallic frame carrying bearings upon opposite sides of the frame and in which bearings the rotor is mounted. the bearings beingpositioned to enable the rotor to turn in the space surrounded by the frame; a metallic pedestal for said, frame:

and a mounting of insulation assembled with the pedestal and carrying the stator in register with said space.

In witness whereof, I hereunto subscribe my name.

' HUGO PERLESZ.

IOU 

